Vacuum heating system.



m /j l/E44 Wu J. L. WELSHANS. VACUUM HEATING SYSTEM. APPLICATION FILED HAY 1,1908.

905,037. Patented Nov. 24, 1908.

Witnesses:

Inventor avy %MZM MM 76 014,

Attorneys.

J. L. WELSHANS. VACUUM HEATING SYSTEM. APPLICATION FILED MAY 1, 190B.

Patented N0v24, 1908.

2 SHEETS-sflEBT 2.

l nventor tzd z JM Witness es:

W H L. WELSHANS, OF CHICAGO, ILLINOIS.

vacuum HEATING .srs'mm.

Specification of Letters Patent.

Batented Nov. 24,

Application filed Kay 1, 1903 Serial No. 430,350.

To all whom it may concern." v a.

BeIit known that I, J osEri-I L. WELSHANS,

a citizen of the United States, and a resident of Chicago, in the county of Cook, in the State of Illinois, have invented certain new and useful Improvements in. Vacuum Heating Systems; and I do hereby declare that the following description of my said inveni'iOIhlflkGll in connection with the accomdrawings, forms a full, clear, and-exact s ecification. which will enable others skille in the art to which it ap pcrtainsto make and use the same.

- .necessar appurtenants,

' struct-ionsuitably disposed within a -b uild-- ,.ter-gage 4; damper-regulator fllhis invent on and it consists, essentially; in thenovel and peculiar combination of parts and deta ls of construction, as hereinafter first fully set forth and described, and then pointed out. in 2othe claims. i .1 i y The ob'ect of this invention is the production and installation-of an economic, serviceable, simple, and efficientvaciuim-heating system that shall require but verylittle at.- tention b v be-nig as. nearly automatic, as a heating systemcan be made. y i In.thedraivingsalready referred tot which .modified form of water-seal employed in this heating-system.

A in the drawings, representsa water heater orsteain generator of any approved form or construction, and fitted with all the such .as watercolumnQ, with'its gage cecks 3i and glass \va- 5, pressure and vacuum-gagged, and such other ap al iances, (not shou m) which are now considered es;- seutial to aperfect steam generator. This steam generator A is connected with the water-distributing system 7,.b' a branch-pipe 8,-having a stop-valve 9,, sot-h erator may be charged with its; required quantum of avatar and; at any subsequent time a deficiency thereinsupplied by opening the stop-velvet 1-D anobviousI anner.

. 10 are a-series of radiators of usualcon mg,'a-nd all Ieonnectedwith a supply-pipe ll,

tvhi-ch pipe iends tronlr the generator to has general reference to mprovements 1n,v vacuum-heating systems at the said genwater-inotorld back has tofpass throiigh the these various radiators 10, and also forms the return for. any water of condensation that may accumulate in the heating system.

12 is atank or reservoir. It connects with the main supply-pipe of the heating system by meansof a ranch 13, having a shut-o valve 14,50 that any accumulation of water in this tank may be drawn therefrom by opening said shut-off 14. and then returned to thegeneratorA by the main 11.

115 is a system of air pipes, connecting the various radiators 10, with the tank ivith said radiators 10 through airvalves lfi, of approved construction. v

B isj a combined water-motor andiaii pump, the lower section, 18 of whichfbeing the water-motor,

,the air-exhauster, the latter being connected with thetank 12 by the pipe, 20, entering the tank either from the bottom andreaching near its topor connecting directly with 12' and and the-upper section; 1 9

thetop of the tank 12, the object being 't'o C is a b v-pass foithe Water-distr buting system 7 and consists of a system of pipes 23. leading from the main in front oLjQhe to the mainin of the water-motor; there being inseirtedi fito this system a pressure-regulator. 9. ,of proved construction. and afseries of sava es -31? valves 25,26; the former'serving the 'WH ,main. and thelatter the, by ass. a a 2T- is a' tva'tcr' faucet 28 a or other apparatus to which or 1101 9 6 "Se; $3 11.. 15 Water 4 close 'J as many a 'fintudf necessary;

sn l ble a 9f manner.

7 H ayjng thus fully shall nm bf gqed to describe itsopration.

, .{The' water-motor '18. which Ifprefemto ii ithdraivingwater fronv the water distributing syste'm 27 within the building. the same the pressure exerted upon the water-piston *torc'esthe l'atter upward: and when at its highest point, reverses and returns to" its pump-cylinder and M described 'the essential parts entering intothissystem ofh-eatlng l.

the m" ansfor normal position by mechanism within said pump, which mechanism, bein well-known, is not shown in detail in the rawings, the operation of the water-motor continuing as long as water is drawn from any of the said faucets or discharges 27. The action of this water-motor 18 actuates the exhauster 19, which is an airpump of Well-known construction, and which is connected with the tank 12 and through it with the system of air-pipes 15 and radiators 10, and which exhauster draws from the entire heatingsystem the inclosed air.

It is a well-known fact that water boils in vacuo, or in a partial vacuum at a lower temperature than at atmospheric pressure which fact is utilized in all vacuum-heating systems and, is also the means employed in my present invention. When as hi h a vacuum has been reached within this eating-system, as is possible by the mechanical devices employed, it requires only that the same be maintained as long as heat is required and, therefore, the air-exhauster needs not 0 erate continuously or for, any very great ength of time; and since the watermotorB would operate as long, or as often as, water is drawn from the water-supply, I have introduced the by-pass system into the water-distributing system, so that, by adjusting the pressure-regulator 24 in the usual manner, it will open, the current of water in the main, instead of assin through the water-motor, will pass throu the by-pass system until the vacuum in t e air and heating system falls below a predetermined again begm to operate-and the water pass through the direct main until the required vacuum is obtained. i

I have introduced the stop-valves 25 into the water system in order to provide for means to shut off the water by the stopvalves 25, should it be necessary at any time to remove the water motor from the system for repairs or other purposes, and the stopvalves 26, to enable repairs, etc., being made to'the pressure-regulator 24, thereby permittingthe water-supply being uninterruptedly used regardless of such repairs as described bein made. This by-pass system is an essentlal element in the present system of heating, resulting in a saving of power, reduction of wear of parts, and preventing interruption of the water supply, and other obvious advantages.

this system of heating in'vacuo, the tank 12 for the purpose of furnishing an auxiliary reservoir from which the air is exhausted and thereby to increase the space in wacuc, beyond that of the steam-generator, the piping, and the radiators, so that should the alr-exhauster remain inoperative for anylength of time, owing to the fact that no water is drawn from the water-main or fanpoint when the water-motor will.

I have introduced into cets, &o., the heating system will not be seriously affected by such temporary stoppage of the air-exhauster.

In order to prevent any possibility of the steam in. the generator A from escaping from the boiler to the return ipe and thereby destroying the vacuum and preventing or retarding the return of the water of condensation, I provide a deep-water seal D, consisting of an outer casing 30, havin a reducin socket 31, at its lower end a p ug 32, by t e removal of which access may be had to the interior of said deep-water seal, and in its upper end a further reducer 83, to which connects the main or steam pipe 11, already referred to. so near thebottomof the outer casing 30 so that any accumulation of water of condensation may collect therein and overflow through the branchlpipe 34 and return to the steam-generator y the pipe 35. This water-seal is an essentia tem of vacuum-heating since it prevents This pipe 11 reachesv feature of this sys-' tofore stated. Instead of this peculiarlyconstructed water-seal I may use other approved seals for sealing the discharge-end of the steam-pipe system without changing the nature of my invention, and in Fig. 2,

have shown a modification of such a system of sealing the main-steam discharge, where instead of the outer casin 30 I employ a return pipe 36 and return ends 38 and 39, connecting the return bend 38 with the steam-space in the steam generator A at any suitable place. In this system the water of condensation will fill the pipe 36 to returnbend'38, and overflow into pipe 35 to return to the steam generator the same as shown in the preferred form illustrated in Fig. 1.

Instead of using on theradiators the airvalves' 16, as shown on two of the radiators, I may use a thermostatic trap 41, shown on the radiator at the extreme right of the drawings.

When such a thermostatic trap is being used I connect the same with the air-supply, the same as shown in connection with the air valves,but in this case I also connect the air-return-pipe with the return-pipe 11 by a short branch 42, so as to conduct the water of condensation from the radiators 10 back to the boiler through the water-seal and thereby prevent water from being drawn into the exhauster.

Having thus fully described my invention I claim as new and desire to secure to me by Letters Patent of the United States- 1. The combination of a steam heating air-exhauster. arranged to be operated when u'iater is withdrawn from the water-distrib- Fitting system. a byass around said water motor, and means or directing the water throuqh either said motor or said hy-pass.

2. 'i he combination of a steam-heating system comprising a steam 'enerator, a radiating system and an air-exhauster, a Water distributing system, including means for drawing water therefrom, said water distributing system being in communication with said generator, a water motor for said air-exhauster arranged to be operated when water is Withd -awn from the water-distributin system. a by-pass around said watermotor. and a pressure regulator in said bypass whereby the water supply is directed through either said motor or said bv-pass.

In testimony that I claim the foregoing as my invention I have hereunto set my han in the presence of two subscribing witnesses.

JOSEPH L. WELSHANS.

Attest:

MICHAEL J. STARK. WILLIAM 0. STARK. 

